Shoe spike



May 24, 1949. R MCKENZE 2,470,997

SHOE SPIKE I Filed Feb. 4, 1946 I I J a" INVENTOR.

Bauer M KaVz/J Arroeway Patented May 24, 1949 UNITED STATES PATENT OFFICE 4 Claims.

-This invention relates to a spike construction adapted to be attached to the soles or heels of shoes. Spikes of various forms are in common use in sports, such as by golf players, tennis players, or baseball players. They serve to ensure a firm footing in soil or sod.

It is one of the objects of this invention to provide an improved form of spike, and especially by the provision of a supplemental element that ensures a better grip and that is easily assembled with the point forming portion of the spike.

This invention possesses many other advantages, and has other objects which may be made more clearly apparent from a consideration of one embodiment of the invention. For this purpose there is shown a form in the drawings accompanying and forming part of the present specification. The form will now be described in detail illustrating the general principles of the invention; but it is to be understood that this detailed description is not to be taken in a limiting sense, since the scope of this invention is best defined by the appended claims.

Referring to the drawings:

Figure 1 is a sectional view of a shoe spike constructed in accordance with this invention, and shown as applied to the bottom of a shoe; and

Fig. 2 is a pictorial view, partly broken away, of a plate utilized in conjunction with the in-- vention.

The bottom I of the shoe is shown as provided with an internally threaded insert 2. This threaded insert 2 may be attached to the bottom of a shoe in any desired manner. It is adapted to receive the threaded shank 3 of a spike structure. This spike structure includes the spike head 4 and a flange 5.

Interposed between the flange 5 and the bottom of the shoe is a plate 6 shown in greater detail in Fig. 2. This plate 6 is provided with an aperture I. In this way, the plate 6 may be disposed over the shank 3 and urged against the lower surface 8 of the shoe.

Plate 6, shownin this instance as circular, has a diameter considerably larger than the diameter of flange 5. In this way, a substantial area of the plate 6 extends beyond the flange 5 and assists in the gripping function of the spike head 4. In order further to assist this gripping action, a ridge 9 may be provided, shown as annular in this instance, and surrounding the flange 5.

Conveniently, the plate 6 may be made of thin sheet metal conformed by appropriate dies to the configuration shown. Plate 6 is furthermore a piece that is separate from the spike 4 and its shank 3. In this way it may readily be placed on or removed from the shank 2 when the spike 4 is removed or replaced.

The inventor claims:

1. In combination: a shoe spike having a shank and a flange disposed around the shank; and a plate adapted to be disposed between the flange and the bottom of the shoe, said plate being in the form of a piece separate from the spike, and having an area extending beyond the flange, said area having a ridge spaced from the flange and surrounding the spike in a manner to provide additional ground gripping surface.

2. In combination, a shoe spike having a flange, and a separate plate apertured for disposition between the flange and shoe sole, said plate having a ridged area spaced from and extending beyond the flange and cooperating therewith to provide additional ground gripping surface.

3. In combination: a shoe spike having a shank and a flange disposed around the shank; and a flat plate adapted to be disposed between the flange and the bottom of a shoe for substantially full bearing contact with said bottom of the shoe, said plate being in the form of a piece separate from the spike and having an area extending beyond the flange, said plate having an annular, ground-engaging ridged area spaced outwardly from said flange.

4. In combination: a shoe spike having a flange; and a separate flat plate apertured for receiving said spike and adapted to be disposed between the flange and a shoe sole in substantially full bearing contact with said sole; said plate having an annular, ground-engaging ridge spaced outwardly from said flange.

ROBERT MCKENZIE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,274,559 Nitkey Feb, 24, 1942 2,292,239 Pierce et a1 Aug. 4, 1942 2,302,471 Pierce et a1 Nov. 17, 1942 FOREIGN PATENTS Number Country Date 61,017 Norway June 19, 1939 99,863 Sweden July 18, 1940 

